Testing and cut-off device for telephone line

A device for interposing on a bifilar telephone or computer-related line in order to connect two incoming strands to two outgoing strands, said device comprising:

• a testing well inside which are located a first couple of free terminals corresponding to the two incoming strands, a second couple of free terminals corresponding to the two outgoing strands, and a first electrical member comprising a surge arrestor, and
• a cover for closing the well,
• wherein said first couple and said second couple are electrically insulated with respect to one another when the cover is open and each terminal being selectively accessible from the outside by a respective testing plug when the cover is open, and said device comprising means incorporating electrical contacts contained in the cover for effecting the interconnection of said first couple and said second couple when the cover is closed on the well,
• wherein said interconnection means incorporating electrical contacts contained in the cover comprise at least one means for galvanically linking said first couple and said second couple with at least one additional electrical member retained inside the cover, and
• wherein the at least one additional electrical member or members are connected together in parallel with respect to the two strands of the line.

A device for interposing on a bifilar telephone or computer-related line in order to connect two incoming strands to two outgoing strands, said device comprising:

• a testing well inside which are located a first couple of free terminals corresponding to the two incoming strands, a second couple of free terminals corresponding to the two outgoing strands, and a first electrical member comprising a surge arrestor, and
• a cover for closing the well,
• wherein said first couple and said second couple are electrically insulated with respect to one another when the cover is open and each terminal being selectively accessible from the outside by a respective testing plug when the cover is open, and said device comprising means incorporating electrical contacts contained in the cover for effecting the interconnection of said first couple and said second couple when the cover is closed on the well,
• wherein said interconnection means incorporating electrical contacts contained in the cover comprise at least one means for galvanically linking said first couple and said second couple with at least one additional electrical member retained inside the cover, and
• wherein the cover further comprises an earth contact making an interconnection with a contact directly connected to earth present in the well, when the cover is closed on the well.